Yes, I’ve definitely noticed colder weather affects the range more than I would have expected. The other night it was cold and I repeated the 55 mph experiment and was averaging 1.9 mi/kWh instead of 2.2 mi/kWh.
What is the average outside temperature when you are typically driving around town? If you reset trip switch, turn off one pedal driving, eliminate any Fast acceleration and mostly only use regen handle on steering wheel and on a warmer day, can you get it up over 2.0 mi/kWh over 20 mile test?
The range of temperature since I have had the truck (6 Months) has been from 5 Degrees to 45 Degrees.
I would like to see a tire that would give a quieter ride. I feel the stock tires are loud, but it's hard to tell because the truck is so quiet!!!
All trucks with mud terrain tires are loud. All terrains will naturally be quieter, but regular all season tire even more quiet. I am getting the extreme off-road package with the mud terrains, but I expect to swap those out for all terrain tires, once I wear out that first set of tires. All terrains also usually have a good snow rating.
Considering we really don't get a lot of snow here on Long Island...Especially this year, less than an 1" so far. I would probably want to go with the All Season for the "Quiet Ride"
When trying to get the longest range possible at a fixed speed, regen braking is the enemy. All energy recouped through regen braking must be reapplied to the vehicle and as no system is 100% efficient in converting energy, there is a loss in the process. Remember, the perpetual motion machine does not exist.
When you have to slow down suddenly due to traffic at 55 on highway won’t regen braking help efficiency vs using brake?
Yes, if you have to slow down regen is the way to do it, but most people when cruising are on and off the throttle (my wife is the worst at this, speed up and down by 7-10 mph) this is a very bad habit for efficiency.
Does Super Cruise on highway with some slow downs use regen braking? That was how I was able to hit 2.2 mi/kWh at 55 mph. It was about 90% at 55 and then 10% slowing down to 25-35 and back to 55.
Works great in stop and go traffic, but not really a benefit on the highway when running at constant speed.
Read closely, and understand physics, then think about this. When hypermiling regen loses you energy, because the conversion of the energy is not 100% efficient, actually I think in the Hummer it's less than 70% efficient by the time you go through all the conversions. so you get say 50-60% of the energy back if you regen, but if you just let the vehicle add some speed on a downhill there is no energy lost (within reason). This is the reason most people hypermile in a flat area at high elevation for the best results in an EV.
So the way I understand what you are saying is if you coast sometimes rather than regen all the time (One Pedal Driving) You might actually get better range (hypermile).
The bottom line is if you must slow down quickly then regen is the most efficient , but if you can coast that is even more efficient because the energy does not go through that long conversion process from my last post.
Yeah but the Hummer is a brick. If it's a long enough hill you definitely do better with regen than speed-up coasting.
That would need to be some hill, more like a mountain pass.
